理化检验-物理分册2025，Vol.61Issue(1)：15-20,6.DOI:10.11973/lhjy-wl240255
激光熔覆铁基涂层的显微组织和磨损性能
Microstructure and wear properties of laser cladding iron-based coating
摘要
Abstract
In order to improve the surface hardness,toughness and wear resistance of 15Cr1Mo1V pearlite heat-resistant steel,a nickel-coated WC iron-based coating was deposited on the surface of 15Cr1Mo1V steel by laser cladding technology.The microstructure and phase of nickel coated WC iron-based coatings were studied using scanning electron microscopy,X-ray diffraction,microhardness tester,impact testing machine,erosion wear testing machine,particle wear testing machine,and blow loss testing machine to investigate their effects on coating hardness,impact performance,erosion wear performance,particle wear performance,and blow loss performance.The results show that the microstructure of nickel-coated WC iron-based coating was dense,and the phases were Cr23C6,Fe3W3C,Fe6W6C and WC,which played a role of dispersion strengthening.With the increase of nickel-clad WC content,the microstructure of iron-based coating was refined,which contributed to the simultaneous improvement of hardness and toughness of the material,and the precipitation of Cr23C6 and Fe6W6C increased.When the mass fraction of nickel-clad WC was 30%,the microstructure of the iron-based coating was dense and the refinement effect was the most obvious.The iron-based coating showed high hardness,high toughness and wear resistance,the hardness of the coating was up to 819 HV0.5,and the impact absorption energy was 62.2 J.The erosion wear loss mass,particle wear loss mass and blowing loss mass of the iron-based coating were about 1/5,1/28 and 1/45 of the substrate loss mass.关键词
激光熔覆/镍包WC/铁基涂层/显微硬度/冲击吸收能量/冲蚀磨损/颗粒磨损/吹损Key words
laser cladding/nickel clad WC/iron-based coating/microhardness/impact absorption energy/erosion wear/particle wear/blow loss分类
通用工业技术引用本文复制引用
何群,郭岩,吴胜法,黄佳敏,俞池恒,熊宗群,王光乐..激光熔覆铁基涂层的显微组织和磨损性能[J].理化检验-物理分册,2025,61(1):15-20,6.基金项目
中国华电集团有限公司科技资助项目(CHDKJ23-02-166) （CHDKJ23-02-166）
